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lapo4ka [179]
3 years ago
15

The sum of three consecutive even integers is –78. What are the integers?

Mathematics
1 answer:
Semenov [28]3 years ago
6 0
You need to write 3 consecutive EVEN numbers using only one variable. multiply by 2 to ensure the numbers are even. Add or subtract  2 to get the next consecutive number.
(2x - 2) , (2x) , (2x + 2)

add them up to equal -78
-78 = (2x-2) + 2x + (2x+2)
-78 = 6x
-78/6 = x
-13 = x

the numbers are:  (2(-13)-2) , 2(-13) , (2(-13)+2) 
-28, -26 , -24
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Answer:

Function:

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Step-by-step explanation:

Yes, the relation described can be interpreted as a function.

Here, c is the cost of a mail letter. c depends upon w, which is the weights of the mail letter.

As described in the question, the relation can be expressed as a function.

c can be expressed as a function of w in the following manner:

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c = f(w) = 0.49, 0 < w ≤ 1

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Step-by-step explanation:

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2 years ago
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Step-by-step explanation:

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